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US 8,541,509 B2Granted
Polymers functionalized with protected oxime compounds
AssigneeBridgestone Corporation
InventorsSteven Luo, Yuan-Yong Yan, Jason T. Poulton, Eiju Suzuki
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Abstract
A method for preparing a functionalized polymer, the method comprising the steps of (i) polymerizing conjugated diene monomer by employing a lanthanide-based catalyst to form a reactive polymer, and (ii) reacting the reactive polymer with a protected oxime compound.
Claims29
A method for preparing a functionalized polymer, the method comprising the steps of:
- (i) polymerizing conjugated diene monomer by employing a lanthanide-based catalyst to form a reactive polymer;
- and
- (ii) reacting the reactive polymer with a protected oxime compound, where the protected oxime compound is defined by the formula I or II
- where R2 and R3 are each independently a hydrogen atom or a mono-valent organic group, R4 is a mono-valent organic group, and R5 is divalent organic group, where said step of reacting the reactive polymer with a protected oxime compound occurs before the reactive polymer is quenched.
1 more element
A functionalized polymer prepared by a method comprising the steps of:
- (i) polymerizing conjugated diene monomer by employing a lanthanide-based catalyst to form a reactive polymer;
- and
- (ii) reacting the reactive polymer with a protected oxime compound, where the protected oxime compound is defined by the formula I or II
- where R2 and R3 are each independently a hydrogen atom or a mono-valent organic group, R4 is a mono-valent organic group, and R5 is divalent organic group, where said step of reacting the reactive polymer with a protected oxime compound occurs before the reactive polymer is quenched.
1 more element
Dependencies are inferred from the claim text.